Installing Attic Insulation In Dormer Walls Faced Or Unfaced

Unfaced insulation can greatly reduce the risk of mold mildew or moisture damage in your house.

Installing attic insulation in dormer walls faced or unfaced.

You can buy them unfaced or simply remove the paper or foil backing. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. When using insulation that has. Always use unfaced batts both when laying product for the first time and to prevent moisture from becoming trapped between new and old layers of insulation.

Measure the roll or batt of insulation to the area that you are going to install it in. To make things safe cover your unfaced insulation with drywall to prevent the risk of a fire. Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.

You should only use faced insulation as the first layer of insulation. Insulating between rafters install batting between the roof rafters for finished attic spaces. You may be required to cover the kraft paper with other materials depending on your local codes. The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses.

You can use either faced or unfaced batting for this installation. If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space. Unfaced insulation in your garage.

Run the unfaced strips perpendicular to the joists and butt each strip tightly together to form an airtight blanket of insulation. If you do use faced insulation you must take extra precautions to avoid having a fire. Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used. Set a t square or metal straightedge over the insulation and press it down firmly.

Remember to set the paper faced insulation upwards. The unfaced insulation can be secured to the framing with staples. Avoid covering an old layer of faced. The kraft paper itself is highly flammable.

If it is too big then trim it to size. Installing insulation has almost the same steps for all. Place the insulation with the facing side down on a piece of scrap plywood. Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.

When adding more insulation to an attic that already has insulation use unfaced insulation. This is the reason you need not add a vapor barrier when you are using paper faced insulation. For example if you plan on using your garage for your welding projects you run the risk of having a welding fire.